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Races / Idaho / ID-SEN

Idaho U.S. Senate

U.S. Senate · Idaho · Statewide · General election: Tuesday, November 3, 2026

Candidates on the November 3 ballot

Candidate list pending certified ballot.

Federal campaign finance filings for this seat: FEC election page (FEC registration is not the same as ballot qualification).

Certified candidates

  • James E. Risch RepublicanIncumbent @SenatorRisch
  • Todd Baker Achilles Independent
  • Matt Loesby Libertarian
  • Natalie M Fleming UN

Certified candidate list from Candidate Alerts, as of 2026-09-24, based on Idaho Secretary of State. Includes candidates the database marks as on the November 3 ballot. Incumbent tags here follow the database.

Past election results

No certified past results for this race are loaded yet.

Demographics

2020 Census demographics by district are not yet published in this data set.

Adults who speak Spanish at home: 7.9% of adults in Idaho

3 of 976 precincts are above 50%, and 51 are above 25%. Source: Census American Community Survey 2020-2024 5-year block groups, allocated to current precinct shapes by area.

Poll status

No GOTV Polling public poll has been released for this race.

Map

Statewide race. State outline: U.S. Census Bureau cartographic boundary file (cb_2024_us_state_20m).

Back to the national races map

County map: past elections and demographics

R+30 or moreR+15-30R+5-15R+0-5D+0-5D+5-15D+15-30D+30 or moreno dataMargin = (Kamala D. Harris minus Donald J. Trump) / all votes, by county.
R+30 or moreR+15-30R+5-15R+0-5D+0-5D+5-15D+15-30D+30 or moreno dataMargin = (Stephen Heidt minus Brad Little) / all votes, by county.
R+30 or moreR+15-30R+5-15R+0-5D+0-5D+5-15D+15-30D+30 or moreno dataMargin = (Joseph R. Biden minus Donald J. Trump) / all votes, by county.
<5%5-15%15-30%30-50%50-70%70%+no data
<5%5-15%15-30%30-50%50-70%70%+no data
<2%2-5%5-10%10-20%20-40%40%+no data
<$40k$40-60k$60-80k$80-100k$100-140k$140k+no data
<15%15-25%25-35%35-50%50-65%65%+no data
<10%10-15%15-20%20-25%25-30%30%+no data
<5%5-15%15-30%30-50%50-70%70%+no data
Ada | 24P R+10.3 | 22 R+27.8 | 20P R+3.9 | Hisp 9.8% Blk 1.3% Inc $99kAdams | 24P R+54.5 | 22 R+51.9 | 20P R+52.3 | Hisp 5.0% Blk 0.2% Inc $71kBannock | 24P R+25.1 | 22 R+31.1 | 20P R+21.9 | Hisp 9.9% Blk 0.8% Inc $73kBear Lake | 24P R+77.1 | 22 R+56.1 | 20P R+77.5 | Hisp 3.9% Blk 0.5% Inc $72kBenewah | 24P R+61.4 | 22 R+49.2 | 20P R+58.4 | Hisp 3.8% Blk 0.6% Inc $62kBingham | 24P R+59.6 | 22 R+60.3 | 20P R+56.0 | Hisp 17.8% Blk 0.2% Inc $80kBlaine | 24P D+31.7 | 22 D+11.6 | 20P D+36.9 | Hisp 22.1% Blk 0.3% Inc $101kBoise | 24P R+54.2 | 22 R+42.9 | 20P R+47.4 | Hisp 5.1% Blk 0.2% Inc $81kBonner | 24P R+46.1 | 22 R+43.4 | 20P R+36.9 | Hisp 4.1% Blk 0.4% Inc $70kBonneville | 24P R+45.4 | 22 R+54.1 | 20P R+43.7 | Hisp 14.4% Blk 0.3% Inc $84kBoundary | 24P R+65.4 | 22 R+50.5 | 20P R+59.2 | Hisp 5.7% Blk 0.3% Inc $67kButte | 24P R+72.5 | 22 R+55.6 | 20P R+71.9 | Hisp 6.5% Blk 0.0% Inc $52kCamas | 24P R+54.1 | 22 R+53.4 | 20P R+53.4 | Hisp 14.0% Blk 0.0% Inc $58kCanyon | 24P R+46.6 | 22 R+43.0 | 20P R+39.8 | Hisp 26.2% Blk 0.7% Inc $80kCaribou | 24P R+71.2 | 22 R+63.8 | 20P R+72.7 | Hisp 5.7% Blk 0.2% Inc $70kCassia | 24P R+69.1 | 22 R+63.8 | 20P R+67.2 | Hisp 29.9% Blk 0.5% Inc $70kClark | 24P R+69.1 | 22 R+63.9 | 20P R+71.7 | Hisp 28.7% Blk 0.0% Inc $55kClearwater | 24P R+62.8 | 22 R+59.3 | 20P R+58.4 | Hisp 4.5% Blk 0.2% Inc $66kCuster | 24P R+53.3 | 22 R+48.9 | 20P R+54.4 | Hisp 4.5% Blk 0.3% Inc $74kElmore | 24P R+48.5 | 22 R+48.8 | 20P R+45.6 | Hisp 18.2% Blk 2.9% Inc $69kFranklin | 24P R+77.6 | 22 R+58.4 | 20P R+78.2 | Hisp 7.5% Blk 0.1% Inc $80kFremont | 24P R+69.0 | 22 R+64.0 | 20P R+67.9 | Hisp 12.4% Blk 0.3% Inc $73kGem | 24P R+66.0 | 22 R+52.2 | 20P R+61.8 | Hisp 10.0% Blk 0.0% Inc $71kGooding | 24P R+60.4 | 22 R+50.1 | 20P R+56.4 | Hisp 31.5% Blk 0.1% Inc $63kIdaho | 24P R+67.8 | 22 R+56.3 | 20P R+65.4 | Hisp 3.9% Blk 0.1% Inc $66kJefferson | 24P R+73.3 | 22 R+66.1 | 20P R+73.9 | Hisp 11.0% Blk 0.0% Inc $86kJerome | 24P R+53.7 | 22 R+54.0 | 20P R+49.3 | Hisp 38.5% Blk 0.1% Inc $77kKootenai | 24P R+51.8 | 22 R+46.5 | 20P R+43.1 | Hisp 5.7% Blk 0.3% Inc $86kLatah | 24P R+8.0 | 22 R+21.5 | 20P D+3.7 | Hisp 5.4% Blk 0.9% Inc $68kLemhi | 24P R+54.9 | 22 R+55.8 | 20P R+54.1 | Hisp 3.9% Blk 0.1% Inc $56kLewis | 24P R+64.9 | 22 R+65.4 | 20P R+61.2 | Hisp 4.3% Blk 1.1% Inc $52kLincoln | 24P R+56.0 | 22 R+52.2 | 20P R+54.6 | Hisp 32.4% Blk 0.6% Inc $70kMadison | 24P R+64.3 | 22 R+64.1 | 20P R+63.9 | Hisp 9.7% Blk 1.0% Inc $72kMinidoka | 24P R+63.3 | 22 R+59.8 | 20P R+59.1 | Hisp 37.2% Blk 0.1% Inc $67kNez Perce | 24P R+38.6 | 22 R+48.9 | 20P R+33.7 | Hisp 4.4% Blk 0.2% Inc $77kOneida | 24P R+75.9 | 22 R+59.1 | 20P R+77.8 | Hisp 4.5% Blk 0.4% Inc $70kOwyhee | 24P R+67.6 | 22 R+48.1 | 20P R+63.5 | Hisp 24.6% Blk 0.5% Inc $68kPayette | 24P R+62.9 | 22 R+54.6 | 20P R+59.5 | Hisp 17.6% Blk 0.1% Inc $72kPower | 24P R+45.1 | 22 R+56.5 | 20P R+40.9 | Hisp 34.0% Blk 0.5% Inc $68kShoshone | 24P R+49.4 | 22 R+44.7 | 20P R+41.8 | Hisp 4.1% Blk 1.0% Inc $56kTeton | 24P D+6.8 | 22 R+3.8 | 20P D+7.2 | Hisp 17.4% Blk 0.0% Inc $112kTwin Falls | 24P R+48.8 | 22 R+45.5 | 20P R+45.3 | Hisp 18.0% Blk 0.8% Inc $75kValley | 24P R+18.6 | 22 R+35.7 | 20P R+13.8 | Hisp 5.4% Blk 0.0% Inc $78kWashington | 24P R+61.5 | 22 R+54.8 | 20P R+57.8 | Hisp 16.3% Blk 0.3% Inc $58k

Choose a layer above. Hover a county for its values.

Precinct-level maps and tables are on the U.S. House district pages.

County results (44 counties)
County2024 President2022 Governor2020 President
MarginVotesMarginVotesMarginVotes
AdaR+10.3267,419R+27.8185,229R+3.9258,951
AdamsR+54.52,681R+51.92,020R+52.32,580
BannockR+25.139,976R+31.125,501R+21.939,466
Bear LakeR+77.13,325R+56.12,266R+77.53,307
BenewahR+61.45,145R+49.23,454R+58.44,964
BinghamR+59.620,651R+60.312,384R+56.019,940
BlaineD+31.713,089D+11.69,720D+36.913,242
BoiseR+54.24,910R+42.93,444R+47.44,808
BonnerR+46.129,710R+43.420,794R+36.927,279
BonnevilleR+45.456,436R+54.135,487R+43.753,882
BoundaryR+65.47,110R+50.55,239R+59.26,284
ButteR+72.51,494R+55.61,009R+71.91,410
CamasR+54.1728R+53.4517R+53.4671
CanyonR+46.6101,030R+43.058,329R+39.890,213
CaribouR+71.23,456R+63.82,120R+72.73,405
CassiaR+69.19,558R+63.85,802R+67.29,591
ClarkR+69.1333R+63.9208R+71.7311
ClearwaterR+62.84,420R+59.33,121R+58.44,410
CusterR+53.32,650R+48.92,036R+54.42,733
ElmoreR+48.510,672R+48.86,630R+45.610,187
FranklinR+77.67,184R+58.44,337R+78.26,636
FremontR+69.06,803R+64.04,262R+67.96,703
GemR+66.010,620R+52.27,631R+61.89,944
GoodingR+60.45,918R+50.14,051R+56.46,034
IdahoR+67.89,867R+56.37,470R+65.49,577
JeffersonR+73.315,820R+66.19,089R+73.914,123
JeromeR+53.77,946R+54.04,858R+49.37,795
KootenaiR+51.896,365R+46.562,296R+43.189,323
LatahR+8.020,461R+21.514,973D+3.720,532
LemhiR+54.94,874R+55.83,660R+54.14,731
LewisR+64.91,846R+65.41,361R+61.21,863
LincolnR+56.01,917R+52.21,321R+54.61,934
MadisonR+64.317,363R+64.18,336R+63.917,047
MinidokaR+63.37,948R+59.84,721R+59.17,982
Nez PerceR+38.620,135R+48.913,481R+33.720,928
OneidaR+75.92,457R+59.11,627R+77.82,442
OwyheeR+67.64,950R+48.13,290R+63.54,728
PayetteR+62.911,761R+54.67,609R+59.511,271
PowerR+45.13,021R+56.51,972R+40.93,061
ShoshoneR+49.46,132R+44.74,128R+41.86,035
TetonD+6.86,698R+3.84,692D+7.26,346
Twin FallsR+48.837,383R+45.522,993R+45.336,419
ValleyR+18.67,240R+35.75,232R+13.87,056
WashingtonR+61.55,555R+54.83,924R+57.85,331

2024 President (Kamala D. Harris vs. Donald J. Trump). Source: Idaho Secretary of State, ElectionStats contest downloads (by county). Certified, Idaho Secretary of State (Idaho election results database).

2022 Governor (Stephen Heidt vs. Brad Little). Source: Idaho Secretary of State, ElectionStats contest downloads (by county). Certified, Idaho Secretary of State (Idaho election results database).

2020 President (Joseph R. Biden vs. Donald J. Trump). Source: Idaho Secretary of State, ElectionStats contest downloads (by county). Certified, Idaho Secretary of State (Idaho election results database).

County demographics
CountyPopulationVoting-age pop.% White non-Hisp.% Hispanic% Black% AsianMedian income*% Bachelor's+% 18-29 (of adults)% 65+% Homeowners% Below poverty% Spanish at home (adults)
Statewide1,891,3221,434,56278.5%13.8%0.7%1.3%$83k31.7%21.3%17.0%72.2%10.6%7.9%
Ada503,310392,39380.9%9.8%1.3%2.7%$99k44.4%20.1%16.2%70.8%8.3%4.5%
Adams4,7393,91387.0%5.0%0.2%0.0%$71k21.7%11.3%30.1%84.7%17.9%1.0%
Bannock86,58364,89280.5%9.9%0.8%1.5%$73k30.7%23.6%15.4%69.4%12.2%4.1%
Bear Lake6,7084,87593.2%3.9%0.5%0.2%$72k21.5%16.6%21.2%89.4%7.1%2.3%
Benewah10,1657,92283.6%3.8%0.6%0.0%$63k19.8%14.6%24.1%73.7%12.8%0.8%
Bingham48,65234,50373.5%17.8%0.2%0.3%$80k21.7%21.2%15.2%80.5%11.8%12.8%
Blaine23,99419,37471.5%22.1%0.3%0.6%$101k48.2%15.3%22.8%73.2%6.7%17.9%
Boise8,2596,98783.5%5.1%0.2%1.5%$81k31.2%11.1%28.3%90.3%7.7%2.9%
Bonner45,72336,75388.8%4.1%0.4%0.5%$70k27.5%11.8%26.0%78.1%11.3%2.0%
Bonneville126,44088,75380.3%14.4%0.3%0.9%$85k33.2%21.3%14.0%71.9%9.7%9.1%
Boundary13,16410,09181.5%5.7%0.3%2.1%$67k24.1%16.2%23.4%75.2%13.7%2.9%
Butte2,6792,02088.7%6.5%0.0%0.0%$52k17.5%16.0%20.3%77.5%19.2%5.7%
Camas1,12682975.9%14.0%0.0%0.0%$58k34.5%14.6%19.4%79.9%5.9%7.2%
Canyon250,775183,72466.9%26.2%0.7%0.8%$80k23.2%22.1%14.5%75.5%10.6%15.7%
Caribou7,1525,26390.5%5.7%0.2%0.0%$70k16.8%17.7%18.1%81.7%9.2%3.7%
Cassia25,21517,40864.5%29.9%0.5%0.3%$70k21.3%22.7%14.5%68.7%12.4%21.9%
Clark84760663.2%28.7%0.0%0.0%$55k20.5%26.5%12.1%61.3%11.7%31.3%
Clearwater9,1317,77487.6%4.5%0.2%1.0%$66k17.5%12.0%29.0%82.7%13.2%1.8%
Custer4,4803,85588.4%4.5%0.3%3.1%$74k29.3%6.4%36.5%76.8%15.8%3.1%
Elmore28,78321,80769.2%18.2%2.9%2.7%$69k22.3%27.1%14.7%65.7%10.3%10.1%
Franklin14,88110,34489.4%7.5%0.1%0.1%$80k23.9%21.8%14.8%78.1%7.9%6.3%
Fremont13,86410,54582.8%12.4%0.3%0.1%$73k22.9%19.8%18.3%82.7%10.0%8.2%
Gem20,54115,99583.2%10.0%0.0%0.8%$71k20.6%14.8%22.8%75.6%12.2%6.0%
Gooding15,86911,67563.1%31.5%0.1%0.3%$63k16.2%19.5%18.4%70.8%13.0%24.2%
Idaho17,17713,78289.1%3.9%0.1%0.6%$66k22.6%12.8%29.6%81.3%10.9%2.3%
Jefferson33,18722,45285.7%11.0%0.0%0.1%$86k27.4%20.8%11.9%83.0%9.7%10.2%
Jerome25,59517,99257.5%38.5%0.1%0.0%$77k14.5%20.9%13.4%75.2%12.5%30.3%
Kootenai176,903137,34285.6%5.7%0.3%0.7%$86k30.1%16.7%20.1%71.7%9.1%2.0%
Latah39,77932,34084.3%5.4%0.9%2.0%$68k42.4%36.3%15.1%58.8%18.1%1.6%
Lemhi8,2236,83091.4%3.9%0.1%0.0%$56k24.1%12.3%30.9%79.3%12.8%2.2%
Lewis3,6682,86281.7%4.3%1.1%1.0%$52k21.2%10.8%28.3%76.6%15.3%2.0%
Lincoln5,3493,95862.2%32.4%0.6%0.3%$70k11.1%21.3%15.4%78.9%10.5%26.4%
Madison53,64142,61483.7%9.7%1.0%1.6%$72k41.9%69.1%5.4%40.8%23.8%6.8%
Minidoka22,20715,93258.6%37.2%0.1%0.2%$67k15.7%22.2%16.1%69.0%14.6%25.8%
Nez Perce40,23731,76285.5%4.4%0.2%0.9%$77k27.4%17.6%21.5%71.7%12.4%1.0%
Oneida4,5163,30091.7%4.5%0.4%0.0%$70k26.7%16.6%19.7%88.3%10.9%5.2%
Owyhee12,3589,34068.1%24.6%0.5%0.1%$68k12.5%18.8%19.4%72.8%12.2%19.4%
Payette26,25319,53875.8%17.6%0.1%0.7%$72k17.5%16.7%19.7%74.8%10.2%8.2%
Power8,3325,86260.6%34.0%0.5%0.0%$68k15.5%17.9%16.9%73.7%9.6%24.8%
Shoshone13,77710,92488.7%4.1%1.0%0.3%$56k12.7%15.3%23.3%73.9%13.1%0.9%
Teton12,4779,69479.2%17.4%0.0%0.1%$112k49.8%15.6%14.3%80.8%9.1%13.2%
Twin Falls91,47267,35275.3%18.0%0.8%1.1%$75k23.5%20.4%16.7%70.5%11.5%11.1%
Valley12,36610,04690.1%5.4%0.0%0.2%$78k40.1%10.7%27.0%81.9%11.7%1.7%
Washington10,7228,33677.9%16.3%0.3%0.6%$59k20.8%15.5%26.5%74.7%15.2%11.0%

Demographics are Census American Community Survey (ACS) 2020-2024 5-year estimates for block groups, summed to counties. They describe the resident population, not registered or likely voters, and include non-citizens. ACS margins of error are not shown; small counties carry large error. Median income is a household-weighted average of block-group medians, an approximation.

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